The Netgear ReadyNAS Duo RND2000 v2 NAS Enclosure is a sleek and durable metal case designed to hold 3.5-inch hard drives. With a USB 2.0 interface, this unit allows for easy data transfer and storage. The black colour and compact design make it a stylish and functional addition to any home or office setup. Despite missing HDD caddies and a PSU, this enclosure still provides a reliable and secure storage solution for your data needs.